Answer to Question #134904 in General Chemistry for Nielle

Question #134904
Bleach is an aqueous solution of sodium hypochlorite. What is the molarity of a solution that contains 20.5g of Sodium hypochlorite in 375mL? (NaClO)
1
Expert's answer
2020-09-24T08:13:05-0400

Molar Mass  Sodium hypochlorite = 74.44 g / mol .


Moles of  Sodium hypochlorite

= mass of  Sodium hypochlorite / molar mass Sodium hypochlorite.


= 20.5 / 74.44


= 0.2753 moles .


 Molarity of a solution = Moles of  Sodium hypochlorite / Volume of Solution in liter .


= 0.2753 mol . / 0.375 liter


= 0.7343 M . Answer .






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